- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 31/08 - Active carbon
Patent holdings for IPC class C01B 31/08
Total number of patents in this class: 440
10-year publication summary
|
20
|
8
|
7
|
6
|
5
|
0
|
0
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Corning Incorporated | 10413 |
35 |
| Blucher GmbH | 176 |
14 |
| British American Tobacco (Investments) Limited | 1010 |
10 |
| Kuraray Co., Ltd. | 3567 |
10 |
| Carbon Technology Holdings, LLC | 228 |
6 |
| Sony Corporation | 30510 |
5 |
| Hyundai Motor Company | 23447 |
5 |
| Albemarle Corporation | 489 |
5 |
| Pneumatic Processing Technologies, LLC | 8 |
5 |
| Saudi Arabian Oil Company | 13931 |
5 |
| Philip Morris Products S.A. | 7945 |
4 |
| Dow Global Technologies LLC | 10754 |
4 |
| Calgon Carbon Corporation | 248 |
4 |
| Inha-Industry Partnership Institute | 173 |
4 |
| Nichias Corporation | 398 |
4 |
| William Marsh Rice University | 1059 |
4 |
| Fujitsu Limited | 17211 |
3 |
| Korea Advanced Institute of Science and Technology | 4537 |
3 |
| Arcactive Limited | 28 |
3 |
| Biogenic Reagents LLC | 11 |
3 |
| Other owners | 304 |